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fsdiffer.go
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fsdiffer.go
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// Copyright 2015 Simone Gotti
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package fsdiffer
type ChangeType uint8
const (
Added ChangeType = iota
Modified
Deleted
)
// FSChanges represents a slice of changes
// This isn't a map to keep ordering on the changes, for a map see FSChangesMap.
type FSChanges []*FSChange
type FSChange struct {
Path string
ChangeType
}
// FSChanges represents a map of changes, the map's key is the path while the
// value is the ChangeType
type FSChangesMap map[string]ChangeType
// Utility function to convert an FSChanges slice to a FSChangesMap
func (fsc FSChanges) ToMap() FSChangesMap {
fscm := make(FSChangesMap, len(fsc))
for _, c := range fsc {
fscm[c.Path] = c.ChangeType
}
return fscm
}
// The FSDiffer interface should be implemented from an fsdiffer implementation
// The returned FSChanges should be lexically ordered like filepath.Walk() does.
type FSDiffer interface {
Diff() (FSChanges, error)
}